शिशिराद्युत्तरायणम् ॥ कZ_०२.२०.६१ ॥
śiśirādy uttarāyaṇam
ອຸຕຕະຣາຍະນະ ເລີ່ມຕົ້ນດ້ວຍລະດູຊິຊິຣະ (ລະດູໜາວ)។
It divides the year into predictable half-year blocks used for planning campaigns, audits, and seasonal resource management.